Five-horse-cultivator equalizer.



W. H. H. RATHBUN.

FIVE HORSE OULTIVATOR EQUALIZBR. APPLIOATION FILED MAR. 27, 1912.

1,100,988. Patented June 23, 19m

2 SHEETS-SHEET 1.

cOLUnIlA PLANOGRAPM (20., WASHINGTON, D. C.

Jnvenfvr:

W. H. H. RATHBUN.

FIVE HORSE GULTIVATOR EQUALIZER.

APPLIGATION FILED MAR. 27, 1912.

1,190,988. Patented June 23,1914

2 SHEETSSHEET 2.

WILLIAM H. H. RATHBUN, OF GUIDE ROCK, NEBRASKA.

FIVE-HORSE-CULTIVATOR EQUALIZER.

Specification of Letters Patent.

Patented June 23, 1914.

Application filed March 27, 1912. Serial No. 686,695.

To all whom it may concern Be it known that I, VILLIAM H. H. RATH- BUN,a citizen of the United States, residing at Guide Book, in the county oflVebster, State of Nebraska, have invented cer tain new and usefulImprovements in Five- Horse Cultivator Equalizers; and I do herebydeclare the following to be a full, clear, and exact description of theinvention, such as will enable others skilled in the art to which itappertains to make and use the same.

This invention relates to draft eveners and has for an object to providean extremely simple and durable device of this character that may beattached to any cultivator having two tongues and will efiectivelyequalize the draft between the draft animals.

A further object is to provide a draft evener that will be formed of afew inexpensive parts and will not easily get out of order. 7

With the above objects in view the invention consists of certain noveldetails of construction and combinations of parts hereinafter fullydescribed and claimed, it being understood that various modificationsmay be made in the minor details of construe-tion within the scope ofthe appended claims.

In the accompanying drawings illustrating this invention: Figure 1 is aplan view of the draft evener applied to a cultivator. Fig. 2 is a frontelevation of the draft evener. Fig. 3 is a cross section on the line 33Fig. 1. Fig. 4 is a cross section on the line 44 Fig. 1. Fig. 5 is afragmentary end elevation. Fig. 6 is a detail perspective of the centralbearing.

Referring now to the drawings in which like characters of referencedesignate similar parts, 10 designates an ordinary cultivator having twotongues 11 and 12.

The draft evener comprises a central member 13 formed of steel bars 14and 15 disposed one above the other and bridging the tongues 11 and 12above and below the tongues, bolts 16 being passed through the tonguesand through the bars near the ends of the latter to secure the centralmember transversely of the tongues. Disposed in alineinent with thecentral member are end members 17 and 18 each formed of a pair of alinedupper bars 19 and 20 and a pair of alined lower bars 21 and 22, the barsoverlapping and being secured together by bolts 23 upon which spacingtubes 24 are secured,

such tubes being equipped with forwardly projecting hinge ears 25. Thebars 20 and 22 of each end member are respectively disposed above andbelow the adjacent tongue of the cultivator and are formed with suitableopenings to pivotally receive the above mentioned bolts 16 so that bothouter members pivot on these bolts. Through the hinge cars 25 of bothspacmg tubes 24 of each end member is passed a pivot bolt 26 and to theends of this bolt are secured draft bars 27 that are rigidly connectedtogether by a rivet 28 or other wise one of the draft rods extendingforwardly and beyond this rivet and being equipped with a swingle tree29.

Each end member is terminally equipped with a swingle tree 30, and toattain this end a pair of draft bars 31 are secured to the ends of'thebars 19 and 21 of the end mem-' of less length than the above mentionedbars 27 so that the draft animals attached to the swingle trees 30 atthe extreme ends of the draft evener are positioned nearer to the draftevener than the draft animals attached to the swingle trees 29.

A swingle tree 34 is secured between the tongues 11 and 12 slightly inadvance of the swingle trees 29 by means of a central draft bar 35 whichis secured by means of a bolt 36 between hinge ears 37 of a tubularbearing 38 that is secured between the upper and lower bars 14 and 15 ofthe central member by means of a bolt 39. Brace bars 40 are secured atthe forward ends to the draft bar 35 by means of a rivet 41 or otherwiseand are secured at the rear ends to the above mentioned bolt 36 the endsof which are secured to hinge bars 42 which project from tubularbearings 43 that are secured between upper and lower bars of the centralmember bymeans of bolts 44.

It will be noted that the central swingle tree 34 and also bothintermediate swingle trees 29 are hinged at their rear ends and swing invertical planes as best shown in Fig. 2, while the terminal swingletrees 30 are rigidly secured to the extreme ends of the draft evener.

A sheave 45 is secured to the central draft bar 35 by means of a clevis46 and the central bight of a chain 47 is trained over this sheave, thechain extending rearwardly to ward the cultivator axle and having theends trained in opposite directions over sheaves 48 that are secured tothe cultivator axle on opposite sides of the longitudinal central axisof the cultivator. There are sheaves 49 secured to the axle in rear ofthe intermediate swingle trees 29, and over these sheaves are trainedchains 50, the rear end of each chain being connected to the adjacentend of the chain 47 by means of a removable link 51, and the forward endbeing connected to the related draft bar 27 by means of a removable link52.

The chains above described and arranged in the above described mannerequalize the pull of the two draft animals attached to the swingle trees30 and 29 of each end member of the draft evener. To lock the centralmember in horizontal alinement with the end members which are pivotedthereto, and thus render the draft operating means inoperative, pins 54:are provided which are adapted to be passed through alining openings 54in the ends of the central member and of the end members. To hold thepin when it is not in use a flexible connection 53 is secured to one endthereof and secured to the ends of the upper bore 14 of the centralbore.

A draft evener constructed as above described will equalize draftbetween five draft animals or between any number of draft animals fromtwo to five. Furthermore, this draft evener is formed of a few strongand durable parts which will not easily get out of order and which maybe manufactured at a minimum expense and which may be applied to allcultivators now in general use that are equipped with two tongues.

vVhat is claimed, is

l. A draft evener including a central bar member, terminal bar memberspivoted ar the inner ends to the outer ends of said central member,alined swingle trees carried at the outer ends of said terminal members,

; a central swingle tree carried by said central member, intermediatealined swingle trees on said terminal members disposed in advance ofsaid terminal swingle trees and in rear of said central swingle tree,and an evener chain terminally connected to said terminal member andcentrally loosely connected to said central member.

2. The combination with spaced draft tongues, of a draft evenerincluding a central bar member spanning said tongues, terminal barmembers pivoted at the inner ends to the ends of said central member anddisposed in alinement with said central member and outside of saidtongues, alined swingle trees carried at the extreme outer ends of saidterminal members, a central swingle tree carried by said central memberbetween said tongues, alined swingle trees disposed on said terminalmembers outside of said tongues and arranged in advance of said terminalswingle trees and in rear of said central swingle trees, and an evenerchain terminally connected to said terminal member and centrally looselyconnected to said central member.

WM. H. H. RATHBUN.

WVitnesses LLOYD H. HUNTER, H. C. CLABAUGH.

Copies of this patent may be obtained for five cents each, by addressingthe Commissioner of Patents, Washington, D. 0."

